| 摘要 |
In one embodiment, sample information and frame length information are obtained from the audio signal. The sample information indicates a total number of audio data samples for each channel in the audio signal, and the frame length information indicates a number of samples in a frame of each channel. An optimum prediction order is determined for each block based on a maximum permitted prediction order and a length of the block, where a prediction order is the number of linear prediction coefficients. The optimum prediction order is selected as a minimum one of the global prediction order and the local prediction order. The global prediction order is determined based on the maximum permitted prediction order, and the local prediction order is determined based on the length of the block.
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